000 00598nam a22002177a 4500
999 _c5965
_d5965
003 OSt
005 20190201091428.0
008 190201b xxu||||| |||| 00| 0 eng d
020 _a0-7131-2652-3
040 _aBFFZ
080 _a581 JEF
100 _aJEFFERS, John N. R.
245 _aAn Introduction to Systems analysis: With ecological applications
260 _aLondon
_bEdward Arnold
_c1978
300 _a198 p.
490 _aA Series of student texts in- Contemporary Biology
650 0 _9195
_aECOLOGIA
650 0 _91511
_aSISTEMAS
650 0 _966
_aBIOLOGIA
942 _2udc
_cBK